#heart {
  margin: auto;
  margin-top: 50px;
  width: 400px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.warning-text {
  color: red;
}
.text {
  width: 400px;
  height: 45px;
  
  border: 5px solid #333;
  border-radius: 5px;
  font-size: 30px;
}
#button {
  display: flex;
  justify-content: space-around;
}
#button > input {
  width: 90px;
  height: 60px;
  border-radius: 10px;
  font-size: 25px;
  background-color: black;
  color: white;
}
.tips{
    font-size: 20px;
}
